1
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the change in internal energy of the system if 15 kJ of work done on the surrounding and system releases 10 kJ of heat in a particular reaction.

A

15 kJ

B

10 kJ

C

-25 kJ

D

-15 kJ

2
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following units of concentrations of solutions is temperature independent?

A

Molarity

B

Mole fraction

C

Percent by volume

D

Mass by volume

3
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is a pair of dihydric phenols?

A

Resorcinol and pyrogallol

B

Quinol and phloroglucinol

C

Phloroglucinol and pyrogallol

D

Catechol and quinol

4
MHT CET (PCB) 2025 9th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the products of following reaction.

$$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{COOC}_2 \mathrm{H}_5 \xrightarrow[\text { dil H}_2 \mathrm{SO}_4]{\Delta} \text { Products } $$

A

$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$

B

$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{COOH}$

C

$\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$

D

$\mathrm{C}_6 \mathrm{H}_5 \mathrm{COOH}+\mathrm{C}_2 \mathrm{H}_5 \mathrm{COOH}$